Fuel injection pump equipped with rotary deflector

Details Fuel injection pump equipped with rotary deflector Fuel injection pump equipped with rotary deflector

2007-07-11

2008-08-26

Gimie, Mahmoud (Department: 3747)

Internal-combustion engines

Charge forming device

With fuel pump

C123S506000

Reexamination Certificate

active

07415973

ABSTRACT:
A fuel injection pump equipped with a rotary deflector having an increased lifetime and reduced maintenance cost required to replace the deflector when it is wasted due to cavitation erosion. The deflector comprises a stationary holder and a tip member which is supported rotatably by the stationary holder so that the tip member is rotated by fuel flow that outbursts from the plunger room through the inlet/spill port and impinges against the tip member when fuel injection ends. This evades concentrated impingement at a specific portion of the tip member and prevents the occurrence of cavitation erosion.

REFERENCES:
patent: 3477386 (1969-11-01), Staudt
patent: 4690624 (1987-09-01), Schwartz
patent: 5015160 (1991-05-01), Hlousek et al.
patent: 5226794 (1993-07-01), Ziehl et al.
patent: 831 834 (1975-11-01), None
patent: 0 347 581 (1989-05-01), None
patent: 0 877 163 (1998-11-01), None
patent: 214115 (1987-03-01), None
patent: 9-144627 (1997-06-01), None
patent: 10-266927 (1998-10-01), None
patent: 2000-179428 (2000-06-01), None
patent: 3585784 (2004-08-01), None
U.S. Pat. No. 5,015,160 to Hlousek et al. corresponding to DE 0 347 581 (May 18, 1989).
European Search Report mailed May 2008 in corresponding application EP 1 921 305.

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